Dusting machine



Sept, 2o, 1927.

P. W. WILCOX DUSTING MACHINE Filed March 6, 1923 2 Sheets-Sheet 1 mm-@Et .El 1

l-l I I l I IFM my J-l-ml k y N Sept 20' 1927 P. w. WIL-cox DusTING MACHINE Filed March 6, 1925 2 Sheets-Sheet 2- nvefniloz Patented pSept. 20, 1927..

,iJNiTEjD STATES 1,643,144 PATENT @EF1-CE.

PHILIP Wi WILCOX, OF ATLANTA., GEORGIA; -KATHARINERAWLING,WILCOX EXECU- TRIX. OF SAID PHILIP W. WILGOX, DELIGEASED.,

f DUstiiNG iviAciiI'Nn. l

Application filed March 6, 1923. y: Serial No. (1523,253.fr

This invention .relates to apparatus foi` uniformlyv applying powdered substances, such as flour, powdered oil andthe like to desired surfaces. In particular, this iiivention is an improved embodiment of the construction presented in; my pending application i'iled concurrently herewith.

An object of the present invention resides in providing a more compactl and simple ap- Hl paratus than that shown in my former application above identified.

Still another object of this invention resides in arranging the brush sothat it rotatesin contact with they movable feeding l means in such a manner as to produce the desired atomization of the powder and thereby eliminating the rigid abutment necessary in my prior construction. I A further object of this invention'resides 2U in theprovision of a. rotating drum inl lieu of atraveling endless belt as'tlie `means for closing vthe hopper outlet and conveying ,the powdered substance to the projecting brush thereby eliminating the sticking of the powder-onk the under surface of the endless belt of my prior construction.

Still another feature resides in the provision ofan adjustable scraper for the rotating druniand also the improved adjustable gate for regulating the dischargefrom the-hopper. 7

A 'further feature resides in the simple and compact means for driving the brush from tlierotating drum and in the Vmanner of adir justingthe brush relative thereto.

These and other obects will be manifest from a perusal of the following specification bodies la construction which is `capable ofgeiieral applicatiointhat is, which is adapted to atomize and distribute` evenly, any powdere-disubstance against vall'portions of any desired vsurface to be treated. In order to present one specific embodiment of the invention in a particular form in order that its adaptability and utility in the art may be more clearly demonstrated, I have shown the structure in theA form of an attachment forthe rotatable drum of a bakers molding machine. It :is of course, obvious that the structure is likewiseadapted in `the baking art to any'otliefr vkind of bakers machine, or. to bread pans," or infact, any dough receiving surface.'A The powdered substances may include flour, powdered, dehydrogenated oil,

or Vany other desirablel substitute.

Referring now particularly tothe accompanying drawing, the usual rotating drum 1 f of a' )bakers molding machinel is" provided on Aits sides with two upstanding supports 2 and 3, to which are bolted upright brack- Tliese brackets in turn have ets 4 and 5.

bolted to them` a box-like structure consisting of side plates 6 and 7. suitably bolted to- I getliery by a plurality of cross vbolts such vas 8. The upper portion of the space between these plates 6 and 7 is provided with two transverse partitions 8l and 9 which are vpreferably inclined `inwardlyfrom top to bottoni to form a hopper adapted to receiven powdered substances, such as flour, powdered,'dehydrogenated oil andthe like. In my former construction, the outlet of this hopper was closed by a'traveling belt which in addition functioned to feed the contents of thehopper! to theV atomizing means. This construction wasv objectionable'because the floatingparticlesj of oil or flour lodgedf on the bunderv lsides of thefbelt and caused de. t f ectiveoperatioii. In 'thepre'sent construc- Y tion, the bottom ofrthis hopper'which is otherwise normally open and free, is sub- .tul

stantially closedy by n ieans'rof a druni'or' wheell'Ov-i arranged so that its periphery eX-v tends across the entire discharge outlet of the hopper,- This drum 10 is ino'unt'edon a` shaft 11 journaled in thev two side plates 6V and r7 and provided on one end with a gear 12 driven by a chain 13, vfrom any suitable source of perver,l such for instance, 'as from the molding machine. itself, or from some likesliaft, or even hand. The partitionQ above referred toy is slightly yspaced from the periphery of the drum 10.V This space is taken'up by means of a scraper '11i adjustably held in desired scraping contact with the peripheryrk ofthis'drumby means of suitable bolts or adjusting'screws 15. The partition 8 is likewise spaced from the periphery of the drum and the gap therebetween is provided with a gate 16 extending entirely across the side of the hopper.

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This` gate is adjustable to and troni the periphery ot the drinn by means oit an adjiisting screw li" passing through the threaded lug lo on the partition 8. By the turning` of the screw l? the gate will approach or re cede l'roni the periphery ot' the drinn to vary the quantity of powdered substance ted from the. hopper by means ot the drinn l0.

In order to atoniize or project the poivdered substance in the -torni ol a 'fog or inist against the surface to be treated, in the present instance, the rotating drinn l of the nnilding machine, a driven brush 19 is utilined. ln my prior application, the bristles ot this brush rotate against the rigid part, and the di ging motion of the bristles agaiiistthe rigid part is utilized to flick the dust upon the bristles as must be evident, whereas, in this application, the brush is disposed so that the bristles rotate in contact with the feed drinn l0 and in such position that the powder iarried around by the drinn to the bristles is projected iii the desired direction against the 'tace oit' the molding drum l. In order to drive this brush, the side plate t3 is proiiided with a bracket 2l in which is mounted an idle gear 2;! which meshes with a gear Q3 on the end of shalt 'il opposite to that to which gear l2 is fixed. Idle gear 22 in turn meshes with a brush gczr mounted on the end ot the brush shalt Q0. The brush shat't Q() in turn is carried by tivo plates each pivotally mounted on plates (i and 7 to swing about the cani axis of the idle gear This construction is shown clearly in Fig. 3. In order to permit this construction, the plates 6 and T are cut away surroivinding the brush shat't 2th The plates 25 are held in any adjusted posit-ion by means ot the slots 26 and 2T and bolts 28 and Q9. By this construction as the bristles of the brush wear down, the brush shaft Qt) may be adjusted closer lio the rotating drinn l() while preserving the internieshing oit the gears 23, 22 and 24. It' desired the plates (i and T may be provided with dependingl tlai'iges 3() and Bl which are disposed at the sides ot' the flange oit' the molding machine drinn l. Suitable adjustment is being provided by a slot and bolt connection 32.

In the operation of the device`r the hopper .filled with powdered substance and the machine put in operation. The drinn l0 rotates in the direction of the arrow (Fig. 2) and the brush 19 rotates in Contact with this drinn in the direction shown. The screws l are adjusted to provide the feed ot powdered substance desired, so that as the drinn rotates. the powder will pass out of the hopper beneath the gate 'lti and will be carried around by the drinn l0. The loose powder will tall directly on the drinn l, whereas, the powder adhering lo the drinn l0 will be carried around in contact with the rotating brush 20, which will act toV atomize the powder and distribute it on the rotating drinn l. The powder which is not properly tliched oil' the drum will be scraped oil' by means ot the scraper ll so that the surface of the drinn is kept in clean condition and will assure the proper cillin; oit the powder from the hopper. it has been lfoiind very practical to enclose the none ot '.itoniization. lo this end, the sido plates G and 7 are provided with ears 235. 3l) to which are pivoted depenilcnt swinging doors 3T, 38 of trough-shaped cross section as .illustrated in lFig. il, with the flanges 39 taeing outwardly. These llanges cause any ot the escaping spray ol powder lo travel closel to the lateral drum triage D and to adhere thereto.

liv inust be obvious that by suitable rearrangement ol construction, this device is equally applicable to any type olE machine. whether in the baiting art or any other desired art. The device can also be adapted l'or ilielting powder upon bread pans and tl e like. The devicey as constructed presents a very simple and most compact arrangement tor distributing the powdered substance uniformly and economically upon the surfaces to be treated, and at the same time diist-proot and sanitary.

It is obvious that niinor changesin the details olf construction and the arrangement ol the parts may be made without departing Jfrom the spirit ol the invention as set 'forth in the appended claim.

Having thus described the invention, what I claim as new and desire to secure by Letters Patentv is In a device of the class iflescribed, the conibiinition oil a support` a hojjiper thereon having a discharge outlet. a rotatable cylinder joiirnaled on said hopper with its perijiiherv lying across the mouth ol said hop` per outlet, a gear on said drinn sha-tt, au idle slialt and a gear thereon meshing with said tirsten'ientioned gear. a bracket pivot-alliV7 mounted on said idle shalt, a` brush sha'lt on said bracliet, a brush on said brush sha'lt adapted to contact with the periphery ot the drinn, ay gear on .said brush sha't't meshing with said idle gear, and means whereby said bracket may be adjusted angularly on its pivot to adjust the brush relatively to the drinn.

In testimony whereof, I a'tlix inv signature.

PHILIP IV. VILCOX.

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